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Play Crossword Puzzle
1 The layer that contains the ozone is?
2 In this layer it is very hot and you might find satellites
3 The layer closest to the Earth is?
4 The harmful rays produced by the Sun are UV, what does that stand for?
5 This layer is very cold and meteorites burn up here
6 This layer has a thin atmosphere and is where satellites may be found
7 This protects us from the harmful rays of the Sun
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